Well I installed my New Anderson Timer today, hit the starter button..and nothing. Odd,I drove it in the barn with the worn out roller timer. So I took it back apart, and after closer inspection I noticed that the flapper was getting bound up on the end of the cam shaft. I placed a call to Mark Hutchinson ( maker of the Anderson Timer) for some technical support. It appears that not all cams are the same. I need a flapper with a "short barrel". Mark was very helpful and agreed to send me out a replacement..now that's service!!

When I purchased my Anderson timer a few years ago I believe this was mentioned in the instructions.

The thicker timing gears are an issue also.

When these timers came out years ago the sizing was based on an original Ford steel timing gear so we have to compensate and check to see if anything is different from the original set up which worked OK. My opinion.

The fiber gears and the newer nylon gears have thicker hubs than the originals. I use the nylon ones and have ground the cam nut shorter in the past. The last few gears I bought from Lang's (with a half-tooth advance built-in) have a shorter cam nut included with the gear. I like that kind of service.